@article{8b483d68167946b4b70392ffed8dce9a,
title = "Structure-property and thermodynamic relationships in rare earth (Y, Eu, Pr) iridate pyrochlores",
abstract = "This study relates structure, properties and thermodynamics, through synthesis, characterization and heat of formation measurements of rare earth iridate pyrochlore (RE2Ir2O7; RE = Y, Eu, Pr) crystalline powders. The RE2Ir2O7 phases are synthesized by high temperature solid-state synthesis methods. X-ray diffraction and elemental analysis techniques are utilized to validate the synthesis and enable structural comparisons. Trends in the bond angles indicate deviations from the Y and Eu analogs for the Pr2Ir2O7 phase. High temperature oxide melt solution calorimetry is used to determine the heats of formation of each phase. Breaking the trend expected across the rare earth series, the enthalpy of formation for Pr2Ir2O7 is more exothermic than the anticipated from the Y and Eu analogs.",
keywords = "Calorimetry, Heats of formation, Iridate, Lattice parameter, Pyrochlore, Rare earth",
author = "Nenoff, {Tina M.} and Rademacher, {David X.} and Rodriguez, {Mark A.} and Garino, {Terry J.} and Tamilarasan Subramani and Alexandra Navrotsky",
note = "Funding Information: This work is supported by the Laboratory Directed Research and Development Program at Sandia National Laboratories . The calorimetric studies were supported by the U.S. Department of Energy, Office of Basic Energy Sciences , grant DE- FG02-03ER46053 . Funding Information: The authors thank Dr. Susan Henkelis for help with graphics and data review, and Dr. Wei Pan and Dr. Jon Ihlefeld for helpful discussions. Sandia National Laboratories is a multi-mission laboratory managed and operated by National Technology and Engineering Solutions of Sandia, LLC., a wholly-owned subsidiary of Honeywell International, Inc., for the U.S. Department of Energy{\textquoteright}s National Nuclear Security Administration under contract DE-NA0003525. This paper describes objective technical results and analysis. Any subjective views or opinions that might be expressed in the paper do not necessarily represent the views of the U.S. Department of Energy or the United States Government. Publisher Copyright: {\textcopyright} 2021 Elsevier Inc.",
year = "2021",
month = jul,
doi = "10.1016/j.jssc.2021.122163",
language = "English (US)",
volume = "299",
journal = "Journal of Solid State Chemistry",
issn = "0022-4596",
publisher = "Academic Press Inc.",
}